I personally like the image. Love the terrain work and how you managed to capture the wolves in natural poses. 

The reason I think the image seems bland is because there’s no “snape”, or as some might call it "pop" to it and that’s because the wolves blend in very well with their surrounding terrain.

 

I also personally do not believe that the viewer should be able to see what the wolves are after to help explain their behavior. Just like you don’t need to show the sun to show the source of the light.Wolves do things out of instinct and survival. They could just as well be playing, heading towards their den, or are out in pack hunting maneuvers. You have captured a moment in time that does not need or require an explanation, it is nature at its best.

 

Lowering the camera POV down looking up as already recommended might help to distinguish the wolves from their background. You might also consider changing the position of the sun to highlight the wolves and contrast them against their shadows. 

Some smattering of vegitation might be nice but not so much as to busy and clutter the scene.

The sky is great but I feel it needs some depth by extending its color saturation  and making it its own character but not so much as to take away from the overall image.

 

Great imagery and I too would like to see how this ends up.

Quest